percentage vs percentages

Some examples from the web:

• A great percentage of all cancers are preventable.
• The farmer cannot get the real percentage of incorporation.
• Where a percentage of the salary applies the above methods and classifications apply except in this case they should be combined with information on percentage fees.
• This parameter increases white pixels percentage.
• His winning percentage is higher than ours.
• His lymphocyte percentage is pretty high.
• That percentage should therefore be increased from a certain production threshold.
• Overall the percentage of antibody positive patients was consistent across clinical trials.
• A small percentage of vitamin D3 undergoes glucuronidation prior to elimination.
• Motorcycles constitute a very small percentage of traffic volume.
• An average percentage for each retail department is often used.
• The proposed percentage budget allocation is also shown.
• System Availability rate represents the percentage of successful transactions per month.
• The percentage difference could not exceed 100 %.
• The percentage found was 23 %.
• Generic class supporting Land Cover value and percentage.
• The percentage degradation in Vessels FC containing the reference substance.
• We negotiated a percentage -but nothing was signed.
• A huge percentage of neurosurgeons are functional psychopaths.
• The percentage of women amongst scientists and engineers has increased significantly.

Some examples from the web:

• With promises of high commissions and big percentages.
• Furthermore the draftsman disagrees with the proposed co-financing percentages.
• Producers' percentages shall be expressed to at least four decimal places.
• The percentages are very low that he'll...
• But I think the unemployment percentages are something the individual Member States should set themselves.
• Interest rates data are submitted as percentages.
• We all like to talk percentages, Ned.
• Competent authorities shall determine and publish the applicable percentages in the ranges specified in paragraph 5.
• The total of all percentages shall be less or equal to 100.
• List of classification values describing into details a land cover unit, associated with percentages.
• Such percentages shall be based on macro-economic statistics for flat-rate farmers alone for the preceding three years.
• The proportion of failure may exceptionally exceed these percentages when due to physical causes.
• The fourth and/or fifth percentage may be added to the first two percentages.
• These percentages were then applied to each of the individual supplies of raw materials.
• I find it is safer to adhere to the percentages.
• Working from the inside, stealing lots of money, skimming percentages.
• They want the same percentages and protection as the Irish.
• Inflation percentages 1994-2001 are calculated at around 4% cumulating to some 35%.
• The countries with low percentages are those with structural problems (unemployment, poverty and regional inequalities).
• Decoupling percentages will be set by each Member State.